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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\extension;
/**
* The extension metadata manager validates and gets meta-data for extensions
*/
class metadata_manager
{
/**
* phpBB Config instance
* @var \phpbb\config\config
*/
protected $config;
/**
* phpBB Extension Manager
* @var \phpbb\extension\manager
*/
protected $extension_manager;
/**
* phpBB root path
* @var string
*/
protected $phpbb_root_path;
/**
* Name (including vendor) of the extension
* @var string
*/
protected $ext_name;
/**
* Metadata from the composer.json file
* @var array
*/
protected $metadata;
/**
* Link (including root path) to the metadata file
* @var string
*/
protected $metadata_file;
/**
* Creates the metadata manager
*
* @param string $ext_name Name (including vendor) of the extension
* @param \phpbb\config\config $config phpBB Config instance
* @param \phpbb\extension\manager $extension_manager An instance of the phpBB extension manager
* @param string $phpbb_root_path Path to the phpbb includes directory.
*/
public function __construct($ext_name, \phpbb\config\config $config, \phpbb\extension\manager $extension_manager, $phpbb_root_path)
{
$this->config = $config;
$this->extension_manager = $extension_manager;
$this->phpbb_root_path = $phpbb_root_path;
$this->ext_name = $ext_name;
$this->metadata = array();
$this->metadata_file = '';
}
/**
* Processes and gets the metadata requested
*
* @param string $element All for all metadata that it has and is valid, otherwise specify which section you want by its shorthand term.
* @return array Contains all of the requested metadata, throws an exception on failure
*/
public function get_metadata($element = 'all')
{
$this->set_metadata_file();
// Fetch the metadata
$this->fetch_metadata();
// Clean the metadata
$this->clean_metadata_array();
switch ($element)
{
case 'all':
default:
// Validate the metadata
if (!$this->validate())
{
return false;
}
return $this->metadata;
break;
case 'version':
case 'name':
return ($this->validate($element)) ? $this->metadata[$element] : false;
break;
case 'display-name':
if (isset($this->metadata['extra']['display-name']))
{
return $this->metadata['extra']['display-name'];
}
else
{
return ($this->validate('name')) ? $this->metadata['name'] : false;
}
break;
}
}
/**
* Sets the filepath of the metadata file
*
* @throws \phpbb\extension\exception
*/
private function set_metadata_file()
{
$ext_filepath = $this->extension_manager->get_extension_path($this->ext_name);
$metadata_filepath = $this->phpbb_root_path . $ext_filepath . 'composer.json';
$this->metadata_file = $metadata_filepath;
if (!file_exists($this->metadata_file))
{
throw new \phpbb\extension\exception('FILE_NOT_FOUND', array($this->metadata_file));
}
}
/**
* Gets the contents of the composer.json file
*
* @return bool True if success, throws an exception on failure
* @throws \phpbb\extension\exception
*/
private function fetch_metadata()
{
if (!file_exists($this->metadata_file))
{
throw new \phpbb\extension\exception('FILE_NOT_FOUND', array($this->metadata_file));
}
else
{
if (!($file_contents = file_get_contents($this->metadata_file)))
{
throw new \phpbb\extension\exception('FILE_CONTENT_ERR', array($this->metadata_file));
}
if (($metadata = json_decode($file_contents, true)) === null)
{
throw new \phpbb\extension\exception('FILE_JSON_DECODE_ERR', array($this->metadata_file));
}
array_walk_recursive($metadata, array($this, 'sanitize_json'));
$this->metadata = $metadata;
return true;
}
}
/**
* Sanitize input from JSON array using htmlspecialchars()
*
* @param mixed $value Value of array row
* @param string $key Key of array row
*/
public function sanitize_json(&$value, $key)
{
$value = htmlspecialchars($value);
}
/**
* This array handles the cleaning of the array
*
* @return array Contains the cleaned metadata array
*/
private function clean_metadata_array()
{
return $this->metadata;
}
/**
* Validate fields
*
* @param string $name ("all" for display and enable validation
* "display" for name, type, and authors
* "name", "type")
* @return Bool True if valid, throws an exception if invalid
* @throws \phpbb\extension\exception
*/
public function validate($name = 'display')
{
// Basic fields
$fields = array(
'name' => '#^[a-zA-Z0-9_\x7f-\xff]{2,}/[a-zA-Z0-9_\x7f-\xff]{2,}$#',
'type' => '#^phpbb-extension$#',
'license' => '#.+#',
'version' => '#.+#',
);
switch ($name)
{
case 'all':
$this->validate('display');
if (!$this->validate_enable())
{
throw new \phpbb\extension\exception($this->user->lang('META_FIELD_NOT_SET', $name));
}
break;
case 'display':
foreach ($fields as $field => $data)
{
$this->validate($field);
}
$this->validate_authors();
break;
default:
if (isset($fields[$name]))
{
if (!isset($this->metadata[$name]))
{
throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array($name));
}
if (!preg_match($fields[$name], $this->metadata[$name]))
{
throw new \phpbb\extension\exception('META_FIELD_INVALID', array($name));
}
}
break;
}
return true;
}
/**
* Validates the contents of the authors field
*
* @return boolean True when passes validation, throws exception if invalid
* @throws \phpbb\extension\exception
*/
public function validate_authors()
{
if (empty($this->metadata['authors']))
{
throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array('authors'));
}
foreach ($this->metadata['authors'] as $author)
{
if (!isset($author['name']))
{
throw new \phpbb\extension\exception('META_FIELD_NOT_SET', array('author name'));
}
}
return true;
}
/**
* This array handles the verification that this extension can be enabled on this board
*
* @return bool True if validation succeeded, False if failed
*/
public function validate_enable()
{
// Check for valid directory & phpBB, PHP versions
if (!$this->validate_dir() || !$this->validate_require_phpbb() || !$this->validate_require_php())
{
return false;
}
return true;
}
/**
* Validates the most basic directory structure to ensure it follows <vendor>/<ext> convention.
*
* @return boolean True when passes validation
*/
public function validate_dir()
{
return (substr_count($this->ext_name, '/') === 1 && $this->ext_name == $this->get_metadata('name'));
}
/**
* Validates the contents of the phpbb requirement field
*
* @return boolean True when passes validation
*/
public function validate_require_phpbb()
{
if (!isset($this->metadata['extra']['soft-require']['phpbb/phpbb']))
{
return false;
}
return true;
}
/**
* Validates the contents of the php requirement field
*
* @return boolean True when passes validation
*/
public function validate_require_php()
{
if (!isset($this->metadata['require']['php']))
{
return false;
}
return true;
}
/**
* Outputs the metadata into the template
*
* @param \phpbb\template\template $template phpBB Template instance
*/
public function output_template_data(\phpbb\template\template $template)
{
$template->assign_vars(array(
'META_NAME' => $this->metadata['name'],
'META_TYPE' => $this->metadata['type'],
'META_DESCRIPTION' => (isset($this->metadata['description'])) ? $this->metadata['description'] : '',
'META_HOMEPAGE' => (isset($this->metadata['homepage'])) ? $this->metadata['homepage'] : '',
'META_VERSION' => (isset($this->metadata['version'])) ? $this->metadata['version'] : '',
'META_TIME' => (isset($this->metadata['time'])) ? $this->metadata['time'] : '',
'META_LICENSE' => $this->metadata['license'],
'META_REQUIRE_PHP' => (isset($this->metadata['require']['php'])) ? $this->metadata['require']['php'] : '',
'META_REQUIRE_PHP_FAIL' => !$this->validate_require_php(),
'META_REQUIRE_PHPBB' => (isset($this->metadata['extra']['soft-require']['phpbb/phpbb'])) ? $this->metadata['extra']['soft-require']['phpbb/phpbb'] : '',
'META_REQUIRE_PHPBB_FAIL' => !$this->validate_require_phpbb(),
'META_DISPLAY_NAME' => (isset($this->metadata['extra']['display-name'])) ? $this->metadata['extra']['display-name'] : '',
));
foreach ($this->metadata['authors'] as $author)
{
$template->assign_block_vars('meta_authors', array(
'AUTHOR_NAME' => $author['name'],
'AUTHOR_EMAIL' => (isset($author['email'])) ? $author['email'] : '',
'AUTHOR_HOMEPAGE' => (isset($author['homepage'])) ? $author['homepage'] : '',
'AUTHOR_ROLE' => (isset($author['role'])) ? $author['role'] : '',
));
}
}
}
|
